A method and system for viewing video content is described. In one aspect a first data stream including video content in a 2d format may be received. The first data stream may include embedded first data identifying tuning data for accessing the video content in a 3d format. The video content may be outputted in the 2d format. A notification of availability of the video content in the 3d format may be displayed to a viewer, and an instruction to tune to the video content in the 3d format may be received. The video content in the 3d format then may be outputted.
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15. A method comprising:
receiving, by a computing device, a first data stream comprising video content in a 2d format and a second data stream comprising the video content in a 3d format;
embedding, in the first data stream, first data identifying the second data stream;
embedding, in the second data stream, second data identifying the first data stream, wherein the first data and the second data are different;
identifying a viewer of the video content;
determining, based on the viewer, a default viewer format for outputting the video content, the default viewer format comprising the 2d format;
outputting the video content in the 2d format;
receiving, by the computing device, an instruction to access the video content in the 3d format;
determining, based on the embedded first data, where to access the video content in the 3d format; and
outputting the video content in the 3d format.
19. An apparatus comprising:
one or more processors; and
memory storing instructions that, when executed by the one or more processors, cause the apparatus to:
receive a first data stream and a second data stream, wherein the first data stream comprises video content in a 2d format, the first data stream further comprising first embedded tuning data for tuning to the video content in a 3d format, and wherein the second data stream comprises the video content in the 3d format, the second data stream further comprising second embedded tuning data for tuning to the video content in the 2d format, wherein the first embedded tuning data and the second embedded tuning data are different;
identify a viewer of the video content;
determine, based on identifying the viewer, a default format for outputting the video content, wherein the default format comprises the 2d format or the 3d format; and
output the video content in the default format.
1. A method comprising:
receiving, by a computing device, a first data stream and a second data stream, wherein the first data stream comprises video content in a 2d format, the first data stream further comprising embedded first data that indicates the second data stream, and wherein the second data stream comprises the video content in a 3d format, the second data stream further comprising embedded second data that indicates the first data stream, wherein the embedded first data and the embedded second data are different;
identifying a viewer of the video content;
determining, based on the viewer, a default viewer format for outputting the video content, the default viewer format comprising the 2d format;
outputting the video content in the 2d format;
receiving, by the computing device, an instruction to access the video content in the 3d format;
determining, based on the embedded first data, where to access the video content in the 3d format; and
outputting the video content in the 3d format.
2. The method of
3. The method of
4. The method of
5. The method of
6. The method of
7. The method of
8. The method of
9. The method of
the embedded first data comprises a first frequency corresponding to the second data stream, and
the embedded second data comprises a second frequency corresponding to the first data stream.
10. The method of
11. The method of
12. The method of
13. The method of
14. The method of
16. The method of
sending the first data stream with the embedded first data; and
sending the second data stream with the embedded second data.
17. The method of
the first data stream with the embedded first data; and
the second data stream with the embedded second data.
18. The method of
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The disclosure relates generally to transmission and display of content, and some aspects of the present disclosure relate to transmission, receipt, and rendering of video content in different formats, such as a 2-dimensional (2D) format and a 3-dimensional (3D) format.
Televisions may operate in conjunction with interfaces such as set top boxes that allow a user to change channels, select services, and/or interact by inputting instructions. Improvements are needed, however, for a user experience related to changing from one video format to another.
In light of the foregoing background, the following presents a simplified summary of the present disclosure in order to provide a basic understanding of some features of the disclosure. This summary is provided to introduce a selection of concepts in a simplified form that are further described below. This summary is not intended to identify key features or essential features of the disclosure.
In accordance with one or more aspects of the present disclosure, a full resolution 2D signal may be generated and both the 2D and 3D version of the video content may be transmitted. Signals in the 2D format of the video content may be used to identify where a computing device may tune to in order to receive the 3D format of the video content, and signals in the 3D format of the video content may be used to identify where a computing device may tune to in order to receive the 2D format of the video content.
In one aspect, implementation includes generating two simultaneous transmissions of the same video content, one in a 2D format and one in 3D format. Additional information could be provided to the system in the form of signaling, or electronic program guide (EPG) data that would allow the system to know where to tune to find the 2D format and 3D format of the video content. When a computing device is instructed to display the video content in a 2D mode, a tuner would acquire the 2D signal; whereas, the 3D signal would be acquired when the computing device is set for a 3D mode. If a viewer first tunes to a 2D format of video content and 3D format of the video content is available, the viewer may be notified that the video content also is offered in 3D (if a rendering device is 3D capable). Toggling between 2D mode and 3D mode on the computing device may force tune between 2D and 3D video content.
Some embodiments of the present disclosure are illustrated by way of example, and not by way of limitation, in the figures of the accompanying drawings and in which like reference numerals refer to similar elements.
In the following description of the various embodiments, reference is made to the accompanying drawings, which form a part hereof, and in which is shown by way of illustration various embodiments in which features may be practiced. It is to be understood that other embodiments may be utilized and structural and functional modifications may be made.
Aspects of the disclosure may be operational with numerous general purpose or special purpose computing system environments or configurations. Examples of computing systems, environments, and/or configurations that may be suitable for use with features described herein include, but are not limited to, personal computers, server computers, hand-held or laptop devices, multiprocessor systems, microprocessor-based systems, set top boxes, digital video recorders, programmable consumer electronics, spatial light modulators, network (e.g., Internet) connectable display devices, network PCs, minicomputers, mainframe computers, rendering devices including television sets, distributed computing environments that include any of the above systems or devices, and the like.
The features may be described and implemented in the general context of computer-executable instructions, such as program modules, being executed by one or more computers. Generally, program modules include routines, programs, objects, components, data structures, etc. that perform particular tasks or implement particular abstract data types. Features herein may also be practiced in distributed computing environments where tasks are performed by remote processing devices that are linked through a communications network. In a distributed computing environment, program modules may be located in both local and remote computer storage media including memory storage devices. Concepts of the present disclosure may be implemented for any format or network environment capable of carrying video content.
When a user is viewing 3D formatted video content and switches to a 2D mode, problems can exist for resolution. In order to accommodate the request by a user, the left eye signal or the right eye signal of 3D formatted video content is dropped and the remaining eye signal is stretched to ½ resolution video across a display screen. Consequently, the subsequent video quality of the 2D experience is reduced substantially since it is half resolution.
With respect to
The captured video content from cameras 101A and 101B may be used for generation of 2D and/or 3D video content for further processing and/or transmission to an end user. The data output from the cameras 101A and 101B may be sent to video processing systems 102A and 102B for initial processing of the data. Such initial processing may include any of a number of steps for processing of video data, for example, cropping of the captured data, color enhancements to the captured data, adding applications, graphics, logos, and association of audio and metadata to the captured video content.
In accordance with one or more aspects described herein, when capturing 2D video content by the cameras 101A and 101B for generation of 3D video content, image processing may be implemented to construct a 3D model of objects within the 3D video content. Scaling may be implemented mathematically to generate a plurality of different versions of the captured video content, each with a different viewing depth profile. Various manipulations of the 3D model may be used to generate the plurality of different versions of the captured video content, such as image/coordinate warping techniques.
3D content may be captured or created in any manner in the spirit of the disclosure. In the example of
The construction of a 3D model and/or the generation of different versions of 3D video content may be implemented by a video processing system, such as video processing system 102A and/or video processing system 102B, and/or a content server, such as content server 107. Generated images from image capture sources, such as cameras 101A and 101B, may be combined with, e.g., annotated, metadata. The metadata may include data identifying data for accessing the content, such as versions of the same video content in a different format. For example, generated images from capture source 101A may be 2D formatted and may be embedded with metadata that includes data identifying where or how a computing device may access the same video content, but in 3D format. The embedded metadata may identify where the computing device tunes to in order to receive the same video content in 3D format.
Optional caption systems 103A and 103B may provide captioning data or other applications accompanying the video. The captioning data may, for example, contain textual transcripts of spoken words in an audio track that accompanies the video stream. Caption systems 103A and 103B also may provide textual and/or graphic data that may be inserted, for example, at corresponding time sequences to the data from video processing systems 102A and 102B. For example, data from video processing system 102A may be 2D video content corresponding to a stream of live content of a sporting event. Caption system 103A may be configured to provide captioning corresponding to audio commentary of, for example, a sports analyst made during the live sporting event and video processing system 102A may insert the captioning into one or more video streams from camera 101A. Alternatively, captioning may be provided as a separate stream from the video stream. Textual representations of the audio commentary of the sports analyst may be associated with the 2D video content by the caption system 103A. Data from the caption systems 103A, 103B and/or the video processing systems 102A, 102B may be sent to a stream generation systems 104A, 104B, to generate a digital data stream (e.g., an Internet Protocol stream) for an event captured by the cameras 101A, 101B.
An optional audio recording system may be included with and/or in place of caption systems 103A and 103B and may capture audio associated with the video signal from the cameras 101A and 101B and generate corresponding audio signals. Alternatively, cameras 101A, 101B may be adopted to capture audio. The audio captured may, for example, include spoken words in an audio track that accompanies the video stream and/or other audio associated with noises and/or other sounds. The audio recording system may generate an audio signal that may be inserted, for example, at corresponding time sequences to the captured video signals in the video processing systems 102A and 102B.
The audio track may be directly associated with the images captured in the video signal. For example, cameras 101A and/or 101B may capture and generate data of a video signal with an individual talking and the audio directly associated with the captured video may be spoken words by the individual talking in the video signal. Alternatively and/or concurrently, the audio track also may be indirectly associated with the video stream. In such an example, cameras 101A and/or 101B may capture and generate data of a video signal for a news event and the audio indirectly associated with the captured video may be spoken words by a reporter not actually shown in the captured video.
For example, data from the video processing system 102A may be video content for a left eye of a viewer corresponding to live video content of a sporting event. The audio recording system may be configured to capture and provide audio commentary of a sports analyst made during the live sporting event, for example, and an optional encoding system may encode the audio signal to the video signal generated from camera 101A. Alternatively, the audio signal may be provided as a separate signal from the video signal. The audio signal from an audio recording system and/or an encoding system may be sent to a stream generation system 104, to generate one or more digital data streams (e.g., Internet Protocol streams) for the event captured by the cameras 101A, 101B.
The stream generation system 104A and 104B may be configured to convert a stream of captured and processed video data from cameras 101A and 101B, respectively, into a single data signal, respectively, which may be compressed. The caption information added by the caption systems 103A, 103B and/or the audio signal captured by the cameras 101A, 101B and/or an optional audio recording system also may be multiplexed with the respective stream. As noted above, the generated stream may be in a digital format, such as an IP encapsulated format. Alternatively, the video content may be transmitted as a file based transmission, or another type of transmission.
In one aspect, a single or multiple encapsulated IP streams may be sent via a network 105 to any desired location. The network 105 can be any type of communication network, such as satellite, fiber optic, coaxial cable, cellular telephone, wireless (e.g., WiMAX), twisted pair telephone, etc., or any combination thereof (e.g., a hybrid fiber coaxial (HFC) network). In some embodiments, a service provider's central location 106 may be used to process and distribute content. Alternatively, content may be delivered to users directly from network 105.
The central location 106 may include, for example, a content server 107 configured to communicate with content sources 100A and 100B via network 105. The content server 107 may receive requests for 2D and/or 3D formatted video content from a user, and may use a termination system, such as termination system 108, to deliver the video content to user premises 109 through a network 110. Similar to network 105, network 110 can be any type of communication network, such as satellite, fiber optic, coaxial cable, cellular telephone, wireless (e.g., WiMAX), twisted pair telephone, etc., or any combination thereof (e.g., a hybrid fiber coaxial (HFC) network) and may include one or more components of network 105. The termination system 108 may be, for example, a cable modem termination system operating according to a standard. In an HFC network, for example, components may comply with the Data Over Cable System Interface Specification (DOCSIS), and the network 110 may be a series of coaxial cable and/or hybrid fiber/coax lines. Alternative termination systems may use optical network interface units to connect to a fiber optic communication line, digital subscriber line (DSL) interface circuits to connect to a twisted pair telephone line, satellite receiver to connect to a wireless satellite line, cellular telephone transceiver to connect to a cellular telephone network (e.g., wireless 3G, 4G, etc.), and any other desired termination system that can carry the streams described herein.
In delivery of 2D and 3D video content, a content server 107 may annotate the 2D and 3D video content with metadata. The metadata may include data identifying how to access the same video content in a different format. Thus, the 2D formatted video content may have (e.g., embedded with) data identifying data (e.g., tuning data) for accessing the same video content in 3D format. Similarly, the 3D formatted video content may have (e.g., embedded with) data identifying data (e.g., tuning data) for accessing the same video content in 2D format. In some examples, the data may be electronic program data that includes data about the video content and data for a computing device, such as a gateway described in more detail below, to tune to or otherwise receive the same video content in a different format.
With respect to
Termination system 108 further may include a frame syncing system, which may be embodied as a computing device as depicted, for example, in
Options for methods of frame syncing a first video signal with a second video signal include, but are not limited to, over/under syncing, e.g., top/bottom, side by side full syncing, alternative syncing, e.g., interlaced, frame packing syncing, e.g., a full resolution top/bottom format, checkerboard syncing, line alternative full syncing, side-by-side half syncing, and 2D+ depth syncing. These example methods are illustrative and additional methods may be utilized in accordance with aspects of the disclosure herein.
In the example of an audio signal, a frame syncing system may be configured to sync the respective audio signals with the frame synced video signal. The process of syncing the audio signals by a frame syncing system may include identifying a time sequence of the frame synced video signal to insert the corresponding audio signals. Audio may come in as different audio tracks in the same 3D signal or be separately carried for each channel.
User premises, such as a home 109 described in more detail below (or any other location such as a business, institution, etc.), may be configured to receive data from network 110 or network 105. The user premises may include a network configured to receive 2D and/or 3D video content and distribute such content to one or more display devices, such as viewing devices, televisions, computers, mobile video devices, smartphones, 3D headsets, pico-projectors, etc. The viewing devices, or a centralized device, may be configured to adapt to viewing preferences of a user. For example, 3D video content for a viewing device may be configured for operation with a polarized lens headgear system. As such, a viewing device or centralized server may be configured to recognize and/or interface with the polarized lens headgear system to render an appropriate 3D video image for display.
The gateway 202 may be connected to a variety of devices within the user premises 109, and may coordinate communications among those devices, and between the devices and networks outside the user premises 109. For example, the gateway 202 may include a modem (e.g., a DOCSIS device communicating with a CMTS in one type of network), and may offer Internet connectivity to one or more computers 205 within the user premises 109 and one or more mobile devices 206 (e.g., mobile phones, personal digital assistants, tablet computing devices and the like) within and/or outside of user premises 109. Although not shown, mobile devices 206 may communicate with gateway 202 through another device and/or network, such as network 105 and/or 110. The connectivity may also be extended to one or more wireless routers 203. For example, a wireless router may be an IEEE 802.11 router, local cordless telephone (e.g., Digital Enhanced Cordless Telephone—DECT), or any other desired type of wireless network. Various wireless devices within the home, such as a DECT phone (or a DECT interface within a cordless telephone), a portable media player 207, portable laptop computer 205, mobile devices 206, and a pico-projector 208, may communicate with the gateway 202 using a wireless router 203.
The gateway 202 may also include one or more voice device interfaces to communicate with one or more voice devices, such as telephones. The telephones may be traditional analog twisted pair telephones (in which case the gateway 202 may include a twisted pair interface), or they may be digital telephones such as a Voice Over Internet Protocol (VoIP) telephones, in which case the phones may simply communicate with the gateway 202 using a digital interface, such as an Ethernet interface.
The gateway 202 may communicate with the various devices within the user premises 109 using any desired connection and protocol. For example, a MoCA (Multimedia Over Coax Alliance) network may use an internal coaxial cable network to distribute signals to the various devices in the user premises. Alternatively, some or all of the connections may be of a variety of formats (e.g., MoCA, Ethernet, HDMI, DVI, twisted pair, etc.), depending on the particular end device being used. The connections may also be implemented wirelessly, using local wi-fi, WiMax, Bluetooth, or any other desired wireless format.
The gateway 202, which may comprise any processing, receiving, and/or displaying device, such as one or more televisions, smart phones, set-top boxes (STBs), digital video recorders (DVRs), gateways, etc., can serve as a network interface between devices in the user premises and a network, such as the network illustrated in
The gateway 202 may include or be connected to one or more output devices, such as a display 204 (or, e.g., an external television that may be connected to a set-top box), and may include one or more output device controllers 307, such as a video processor. There may also be one or more user input devices 308, such as a wired or wireless remote control, keyboard, mouse, touch screen, microphone, etc. The gateway 202 also may include one or more network input/output circuits 309, such as a network card to communicate with an external network, such as network 110 in
The gateway 202 may include a variety of communication ports or interfaces to communicate with the various home devices. The ports may include, for example, an Ethernet port 311, a wireless interface 312, an analog port 313, and any other port used to communicate with devices in the user premises. The gateway 202 may also include one or more expansion ports 314. The expansion port 314 may allow the user to insert an expansion module to expand the capabilities of the gateway 202. As an example, the expansion port 314 may be a Universal Serial Bus (USB) port, and can accept various USB expansion devices. The expansion devices may include memory, general purpose and dedicated processors, radios, software and/or I/O modules that add processing capabilities to the gateway 202. The expansions can add any desired type of functionality, several of which are discussed further below.
Aspects of the present disclosure as described herein illustrate examples in transmitting, e.g., simulcasting, video content either live or based upon a timed simulcast. Aspects of the present disclosure may be implemented with any other transmission techniques, e.g., unicasting such as in a video on demand system, etc.
Proceeding to step 405, the first data stream of video content may be combined (e.g., embedded) with first data identifying tuning data or other means for accessing the same video content in a different format. Since the first data stream of video content is in a 2D format from step 401, the 2D formatted video content may carry data identifying how to access the same video content in 3D format. In the example of
Similarly, in step 407, the second data stream of video content may be processed to include (e.g., embedded with) second data identifying data for accessing the same video content in a different format. Since the second data stream of video content is in a 3D format from step 403, the 3D formatted video content may carry data identifying how to access the same video content in 2D format. In the example of
The first data or the second data may be inserted (.e.g., embedded) into a stream as part of a packet of data. The data, e.g., identifying tuning data, may be embedded with the header and payload. In some examples, the embedded data may be electronic program data that includes data about the video content and data for a computing device, such as gateway 202, to tune to receive the same video content in a different format. As described below, the computing device that receives a data stream of video content in one format, e.g., 2D format, may utilize the embedded data identifying tuning data for accessing the video content in another format in order to switch to the video content in the other format, e.g., 3D format.
Moving to step 409, a computing device may transmit the first data stream, with the embedded first data identifying tuning data for accessing the same video content in a 3D format and the second data stream, with the embedded second data identifying tuning data for accessing the same video content in a 2D format. The device implementing step 409 may be a computing device such as a content server, such as content server 107. The first data stream and the second data stream may be transmitted in step 409 simultaneously or at different times. The 2D video content and the 3D video content may be delivered over a network to an end user, such as through network 110 to an end user at user premises 109 in
Thus in some examples, the video content in 2D format may be streaming at a same time sequence as the video content in 3D format while, in other examples, the video content in the 2D format may be streaming at an earlier or later time sequence.
In
In
In step 507, the video content in 2D format is outputted from the computing device or presented to or by a display device. In one or more examples, the video content in 2D format may be outputted, with full resolution for example. Step 507 may be implemented by gateway 202 or a display device, for example. In step 509, the video content in 3D format is outputted from the computing device or presented to or by a display device. In one or more examples, the video content in 3D format may be outputted with half resolution. Video content in 3D format outputted with half resolution means that half of the original video content data is thrown out or not used in the output or rendering or display process. In such examples, the first data stream received in step 505 includes the video content in 3D format with half resolution. There is no need for stretching of one video signal, such as the left eye signal, associated with video content in 3D format since it is received in half resolution form in step 501. Step 509 may be implemented by gateway 202 or to a display device, for example. Steps 507 or 509 both may lead to step 511. In step 511, a notification of the availability of the video content in the other format may be outputted or presented. The notification may be a user interface, accessible by a viewer, to access the video content in the other format. If proceeding from step 507, the notification in step 511 may be a user interface that the same video content is available in 3D format. Similarly, if proceeding from step 509, the notification in step 511 may be a user interface that the same video content is available in 2D format.
Returning to
In step 515, the computing device may determine where to access the video content in the other format based upon data included, e.g., embedded, in the first data stream received in step 501. The included data in the first data stream may include data identifying how to access (e.g., by tuning) the same video content in the other format. Thus, if the first data stream includes video content in 2D format, the included data in the first data stream includes data identifying data for accessing the same video content in 3D format. The data identifying data for accessing the same video content in 3D format may be data identifying a specific frequency for a tuner of the computing device to tune to in order to receive the video data in 3D format.
In step 517, the computing device may receive a second data stream of video content in the other format, such as 3D format from a content server 107 via the network 110 in
In yet another embodiment, a first data stream as described herein may be video content in 2D format with full resolution and a second data stream as described herein may be video content in 3D format that is the right eye data stream in half resolution. The two streams may be simulcast, or otherwise transmitted, with the included data regarding the other data stream. Such an embodiment drops the transmission rate of the 3D data stream by 50% since the 3D content is for the right eye only, not 3D content for both the right eye and the left eye. With respect to the 3D format, only 50%, the right eye in this example, is transmitted as part of the simulcast streams. A device then may receive a data stream of video content in 3D format for the corresponding left eye with the left eye stream with full resolution. The gateway may process the full resolution to half resolution and then frame sync the half resolution version of the left eye signal with the half resolution signal of the right eye, the second data stream, in order to generate a frame synced data stream creating the 3D experience. Alternatively, the second data stream in this example may be the left eye signal and the separately received additional data stream that is processed to half resolution may be the right eye stream.
Proceeding to step 805, a default viewer format may be determined. Step 805 may be implemented by gateway 202 as shown in
In step 807, a determination may be made as to whether the video content in the first data steam received in step 801 is in the default viewer format. If the first format in the first data stream is in the default viewer format, such as 2D, the process moves to step 809, where the video content in the first format is outputted from the computing device. Step 809 may be implemented by gateway 202 outputting to a display device 204 in
In step 811, the computing device may determine where to find, e.g., tune to, the video content in the default viewer format based upon data embedded in the first data stream received in step 801. The embedded data in the first data stream may include data identifying tuning data for accessing the same video content in the default viewer format. Thus, if the first data stream includes video content in 2D format, the embedded data in the first data stream may include data identifying tuning data for accessing the same video content in 3D format. The data identifying tuning data may be data identifying a specific frequency for a tuner of the computing device to tune to in order to receive the video data in 3D format.
In step 813, the computing device may receive a second data stream of video content in the default viewer format, such as 3D format from a content server 107 via the network 110 in
Other embodiments include numerous variations on the devices and techniques described above. Embodiments of the disclosure include a non-transitory machine readable storage medium (e.g., a CD-ROM, CD-RW, DVD, floppy disc, FLASH memory, RAM, ROM, magnetic platters of a hard drive, etc.) storing machine readable instructions that, when executed by one or more processors, cause one or more devices to carry out operations such as are described herein.
The foregoing description of embodiments has been presented for purposes of illustration and description. The foregoing description is not intended to be exhaustive or to limit embodiments of the present disclosure to the precise form disclosed, and modifications and variations are possible in light of the above teachings or may be acquired from practice of various embodiments. Additional embodiments may not perform all operations, have all features, or possess all advantages described above. The embodiments discussed herein were chosen and described in order to explain the principles and the nature of various embodiments and their practical application to enable one skilled in the art to utilize the present disclosure in various embodiments and with various modifications as are suited to the particular use contemplated. The features of the embodiments described herein may be combined in all possible combinations of methods, apparatuses, modules, systems, and non-transitory machine-readable storage media. Any and all permutations of features from above-described embodiments are the within the scope of the disclosure.
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